A synchronous machine with hybrid rotor and out rotor
A technology of synchronous motors and hybrid rotors, applied to synchronous motors with stationary armatures and rotating magnets, electric components, electrical components, etc., can solve the problem of low torque density and power factor, severe magnetic field saturation, d-q axis inductive coupling high level questions
Pending Publication Date: 2019-01-08
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
However, this kind of motor still has shortcomings such as low torque density and power factor, serious magnetic field saturation under high power conditions, and high degree of d-q axis inductive coupling, which limits its industrial application.
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[0022] The specific embodiment: the present invention is specifically described below in conjunction with accompanying drawing:
[0023] The hybrid rotor outer rotor synchronous motor includes a casing (1), a permanent magnet assisted cage rotor (2) inside the casing (1), a stator (3) inside the permanent magnet assisted cage rotor (2), and a stator (3 ) inside the rotating shaft (4), which is characterized in that: the permanent magnet auxiliary cage rotor (2) is placed outside the stator (3), the casing (1) is arranged outside the permanent magnet auxiliary cage rotor (2), and the permanent magnet The auxiliary cage barrier rotor (2) is connected with the casing (1) through the dovetail groove; the permanent magnet auxiliary cage barrier rotor (2) adopts a magnetic barrier type reluctance rotor laminated along the axial direction, A magnetically permeable layer (8) is provided on the chip, and the magnetically permeable layer (8) adopts a trapezoidal structure, and a non-mag...
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A synchronous motor with mixed rotor outer rotor comprise a casing, a rotor inside that casing, a stator inside the permanent magnet auxiliary cage rotor and a rotating shaft inside the stator, wherein the permanent magnet auxiliary cage rotor is arranged outside the stator and is connected with the casing through dovetail slot; The rotor is a permanent magnet auxiliary cage rotor which is stackedin axial direction, and the non-magnetic conductive layer is added with a block counter-magnetized permanent magnet whose width and magnetizing direction change sinusoidally and a short-circuit cagebar whose width is not equal to the air gap and is narrow to the rotating shaft. Three-phase symmetrical stator windings are embedded on the stator. The new type of permanent magnet assisted cage rotor has the remarkable advantages of excellent performance, novel structure, simple process, low cost, high mechanical strength, reliable operation and easy industrialization.
Description
technical field [0001] The invention relates to a hybrid rotor outer rotor synchronous motor, which belongs to the field of motors. Background technique [0002] The embedded rotor permanent magnet motor using rare earth materials has been widely used in many fields due to its high power density and torque density, high efficiency, and wide constant power operating range. However, rare earth permanent magnets are expensive and resources are limited, and the continuous supply of rare earth permanent magnet materials is also a prominent problem. Academia and industry have shown great interest in low-cost permanent magnet motors represented by low-rare earth, rare-earth-free permanent magnets and ferrites. Research and development of less rare earth / no rare earth permanent magnet motor has important theoretical significance and application value. [0003] Synchronous reluctance motors have achieved rapid development after the 1990s, and have shown huge applications due to the...
Claims
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Login to View More IPC IPC(8): H02K21/22H02K1/27
CPCH02K1/2786H02K21/22
Inventor 张凤阁金石刘光伟罗皓于思洋蒋晓东
Owner SHENYANG POLYTECHNIC UNIV